ME345_Lecture_01

ME345_Lecture_01 - 603. 600 60 0 0.007 1.005 7 7. 50....

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M E 345 Spring 2008 Professor John M. Cimbala Lecture 01 01/14/2008 ME 345 - Instrumentation, Measurements, and Statistics Today, we will : Introduce the course and instructor: John M. Cimbala, 863-2739, jmc6@psu.edu Briefly go over the course website at www.mne.psu.edu/me345 Review first pdf module: Introduction to Mechanical Engineering Measurements Do some practice questions and example problems Show some hints about plotting in Excel, if time. Practice Questions : 1. How many significant digits are in each of these numbers? Number Number of sig. digits Exponential notation
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Unformatted text preview: 603. 600 60 0 0.007 1.005 7 7. 50. 0.01070 732,000 732,00 0 732 ,000 732,000. 2. What is 2.00/3.0? Example Given : 3 measurements with 3 different instruments i) 134,290 (5 significant digits) ii) 0.2875 (4 significant digits) iii) 29.473 (5 significant digits) ( a ) To do : Round each number to 3 significant digits. Solution : ( b ) To do : Add the 3 numbers and report the answer to the appropriate number of significant digits. Solution : ( c ) To do : Multiply the first two numbers and report the answer to the appropriate number of significant digits. Solution :...
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ME345_Lecture_01 - 603. 600 60 0 0.007 1.005 7 7. 50....

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